IN
in2

Mechanical Engineer

Mid-levelFull-time
Belfast, Northern Ireland, United Kingdomvia in2 CareersPosted Sep 21, 2026
Match with my CV

Technical skills

BIMRevit

About this role

Mechanical Engineer

Don’t join an Engineering firm. Build what comes next.

Most roles ask you to deliver drawings. This one expects you to shape systems that change how buildings perform and how people live.

The Role

You’ll work across the full project lifecycle, designing mechanical systems and influencing decisions from day one. You won’t just deliver designs, you’ll help shape how projects perform, working closely with teams, clients, and stakeholders.

What You'll Do

  • Design mechanical building services systems across multiple sectors
  • Deliver projects from concept through to construction and handover
  • Produce calculations, specifications, and technical reports
  • Coordinate with electrical engineers, architects, and design teams
  • Attend client meetings and contribute to engineering decisions
  • Support site inspections, commissioning, and final delivery
  • Drive energy-efficient and sustainable design solutions
  • What You'll Bring
  • Degree in Mechanical or Building Services Engineering
  • 2 to 5+ years' experience in a consultancy or similar environment
  • Strong HVAC and building services design experience
  • Experience with IES, Hevacomp, or similar; Revit beneficial
  • Ability to manage workload across multiple projects

- Strong communication and client-facing skills

  • What You'll Get
  • This isn't built around perks. It's built around how high-performing engineers actually want to work. Real ownership, real progression, and a culture that trusts you to deliver.
  • The Essentials
  • Competitive salary, bonus and pension that reflect your impact
  • 22 to 27 days annual leave, plus bank holidays
  • Flexible working across a 37.5 hour week (x5, 7.5 days): early start or later start? You decide
  • Career Progression
  • A clear path forward, with responsibility increasing as you prove it
  • Direct exposure to senior leaders, not layers of hierarchy
  • IN2 Academy, CPD support and chartership guidance
  • Fully paid professional fees
  • Health and Wellbeing
  • Employee Assistance Programme and annual health checks
  • Wellbeing and fitness initiatives that support you long term
  • Cycle to Work scheme to make the everyday easier
  • Social and Community
  • Genuinely strong team culture, built through regular events and shared wins
  • Employee-led charity initiatives with real involvement
  • Offices in Dublin, London, Berlin, Belfast, Athlone and Madrid
  • Why IN2?

Across every role, electrical, mechanical, or BIM, the IN2 difference is the same: you're expected to think, lead, and shape outcomes, not just execute instructions. Here's what sets us apart.

  • Ownership from Day One
  • Whether you're an Engineer or a Senior, you'll have real accountability and decision-making authority. No waiting for permission. No layers of sign-off slowing you down.
  • Progression Based on Ability
  • Faster progression based on what you deliver, not how long you've been in the seat. A clear pathway from Engineer to Senior, Associate, and beyond.
  • Innovation Time
  • Dedicated time to develop new ideas, explore emerging technologies, and contribute to sustainability strategies: built into how we work, not bolted on.
  • High-Performance, Low-Ego Culture
  • A team that challenges each other, supports each other, and wins together. No hierarchy for hierarchy's sake. Just talented people doing exceptional work.
  • Complex, High-Profile Projects
  • Exposure to design-led, high-impact developments that push the boundaries of what building services engineering can achieve.
  • Global Reach
  • Work across offices in Dublin, London, Berlin, Belfast, Athlone, and Madrid- a genuinely international practice with a collaborative, connected culture.
  • Ready to own the outcome? Join a team that expects more and gives more in return.

Before you apply

  • 1Which parts of your CV prove experience with BIM and Revit?
  • 2Which recent work examples would make your application stronger for this role?
  • 3What details from the original source listing should you confirm before applying?

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